My female drinking buddy (who is my best friend's girlfriend) missed the last train and had to stay over at my place! When I lent her my white T-shirt to change into, it was way too big on her and strangely sexy, making me really horny... I know I shouldn't make a move on her, but I couldn't resist and touched her breasts from behind. At first, she seemed annoyed, but when I kept forcefully groping them, her pussy started getting wet... Even though she said "Stop," it was obvious she didn't mean it! We did it over and over, and when we ran out of condoms, we did it raw several times!